I was driving from Sedona, AZ to Monument Valley Navajo Tribal Park on Friday, September 18, 2015. I was taking pictures of the first glimpses of Buttes and Mesas, with iPhone 4s, while driving towards Monument Valley Navajo Tribal Park (photo taken approximately half way between Kayenta, AZ and entrance to Monument Valley). The time of the image was between 4:45pm and 5:15pm.After coming back home to Sedona, AZ, I was reviewing the pictures I took of Monument Valley and noticed that I captured 2 UFOs in the attached digital photo. I did not notice the objects in the sky at the time of taking the pictures (since I was focusing on the Buttes and Mesas).